Skip a trip to the store and print your own drywall patch! It's a single layer printed at 0.08 layer height, which is plenty sturdy for the task while making it easy to cover and feather. I included some photos comparing the size and thickness to a typical commercial product.

Multiple sizes are included for convenience. I suggest going slow, especially for a larger patch, and raising the plate temp slightly higher than usual. The printer will treat it as a huge number of 2mm lines so if you have any adherence issues it should be just a skipped line here or there which can be cut around or ignored, the patch will work as intended anyways.